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Titolo:
TACTILE SALIENCE INFLUENCES EXTINCTION
Autore:
AGLIOTI S; SMANIA N; MORO V; PERU A;
Indirizzi:
UNIV VERONA,POLICLIN BORGO ROMA,DIPARTIMENTO SCI NEUROL & VIS,SEZ FISIOL UMANA,STRADA GRAZIE 8 I-37134 VERONA ITALY UNIV VERONA,POLICLIN BORGO ROMA,SERV RECUPERO & RIEDUCAZ FUNZ I-37134VERONA ITALY OSPED SACRO CUORE,SERV RECUPERO & RIEDUCAZ FUNZ NEGRAR ITALY
Titolo Testata:
Neurology
fascicolo: 4, volume: 50, anno: 1998,
pagine: 1010 - 1014
SICI:
0028-3878(1998)50:4<1010:TSIE>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
UNILATERAL NEGLECT; VISUAL-STIMULI; BRAIN-DAMAGE; INFORMATION; ATTENTION; BLIND; HEMIANOPIA; HEMIPLEGIA; HEMISPHERE; COMPONENTS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
28
Recensione:
Indirizzi per estratti:
Citazione:
S. Aglioti et al., "TACTILE SALIENCE INFLUENCES EXTINCTION", Neurology, 50(4), 1998, pp. 1010-1014

Abstract

We delivered unilateral (left or right) or bilateral tactile stimuli to hands or feet of right-brain-damaged patients, six with tactile extinction and two without. Stimuli were simple touches or sliding stimuli directed proximo-distally (e.g., toward the fingers) or disto-proximally (e.g., toward the forearm). Patients were asked to report number tone or two), type (touch or slide), and direction (proximo-distally or disto-proximally) of the experimental stimuli. Nonextinction patients performed perfectly. Extinction patients, although accurate in reporting single stimuli, omitted left stimuli under double-stimuli conditions. However, the number of left stimuli detected consciously was related to an imbalance of the salience between left and right stimuli. Moreover, in three patients the extinguished, left-sided stimulus, even when inaccessible to consciousness, influenced implicitly the report of the features of the right stimulus. Thus, the relationships between left and right stimuli can modulate both overtly and covertly the performance of extinction patients.

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Documento generato il 04/04/20 alle ore 15:10:46